<h3>Please select your friends to take <em><%= @course.to_s %></em> with you during <em><%= @semester.to_s %></em></h3>
<% form_tag :action => 'take_my_course_with_friend', :course_id => @course.id do %>
    <ul>
        <%= checkboxes_from_collection_for_multiple_select 'friends', @friends, 'id', 'to_s' %>
    </ul>
    <%= submit_tag 'Take course with selected friends' %>
<% end %>

